In an interview you will only see on News 3, hear from the man accused of a scam that turned violent. News 3's John Treanor spoke with Henderson this afternoon.

This all started with an ad on Craigslist.

Online shoppers came for a deal that sounded too good to be true.

They came for a Samsung cell phone and, police say, they left as victims of a crime.

There are plenty of ads on the online site but one, offering the phone for $350, was not what it promised. Police say the ad was posted by Henderson and he was looking to do more than cut a deal.

Jie Liang answered the ad and got a text message leading him to a location to supposedly purchase the Samsung Galaxy Note cell phone.In the back parking lot of the Hampton Apartments he took out $300 from his pocket. Meanwhile, there were two young kids in his car.

Within minutes he was attacked.

“They hit me, punch me, the first thing,” Liang said. “I just want to go back to my car to protect my kids, that’s it.”This wasn’t the only incident.

Police say Henderson met a woman in a parking lot and after making the deal asked for a ride. When they got in the car he pulled a knife and demanded she give him everything, but Henderson told News 3 he's innocent.

“Honestly, I know I’m not a criminal,” Henderson said.

In a jailhouse interview, the 21-year-old denied having anything to do with it but he wouldn't say much without lawyer present.

Question: Have you ever sold anything on Craigslist?

Henderson: I can’t answer that.

Question: Have you ever owned a Samsung Note?

Henderson: I can't answer that.

Still, it’s what he did say that might raise eyebrows and without admitting involvement or even knowledge he offered up a guarantee.

“Well no one was robbed, I can tell you that,” Henderson said. “They may have been mad about how the situation played out, but no one was robbed.”

Henderson is awaiting trial but it might not get to that point, the district attorney tells News 3 a deal is on the table.

The district attorney is also using this arrest as a warning.

Craigslist scams are becoming common and authorities want everyone to be cautious and use common sense.